Fixed spelling error in README (#207)

README.md

@@ -33,7 +33,7 @@ Note that some examples requires optional dependencies for plotting, they are:
 FMU Import Compliance
 -----------
 PyFMI is tested daily in several different ways:
-* Extensive external testing within the `Optimica Compiler Toolkit` (OCT) provided by [Modelon](https://help.modelon.com/latest/reference/oct/) using all models in Modelon Modelica libararies (35000+ models), exported as FMUs.
+* Extensive external testing within the `Optimica Compiler Toolkit` (OCT) provided by [Modelon](https://help.modelon.com/latest/reference/oct/) using all models in Modelon Modelica libraries (35000+ models), exported as FMUs.
 * Unit tests from the `tests` directory. These use FMUs generated by
   * OCT
   * JModelica.org